CN201797305U - Open-circuit protection device of three-phase alternating current motor - Google Patents
Open-circuit protection device of three-phase alternating current motor Download PDFInfo
- Publication number
- CN201797305U CN201797305U CN2010202515279U CN201020251527U CN201797305U CN 201797305 U CN201797305 U CN 201797305U CN 2010202515279 U CN2010202515279 U CN 2010202515279U CN 201020251527 U CN201020251527 U CN 201020251527U CN 201797305 U CN201797305 U CN 201797305U
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- CN
- China
- Prior art keywords
- phase
- alternating current
- motor
- open
- protection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an open-circuit protection device of a three-phase alternating current motor. The open-circuit protection device comprises an alternating current motor (1) and is characterized in that: a three-phase outgoing line of the alternating current motor (1) is sequentially provided with a three-phase motor protector (2) and a three-phase breaker (4); the three-phase outgoing lines between the three-phase motor protector (2) and the three-phase breaker (4) are respectively provided with a contactor (3); and the three-phase motor protector (2) and the three-phase breaker (4) are of integral type. The open-circuit protection device effectively ensures that the motor is not burned up in virtue of the three-phase motor protector and a three-phase open-circuit protector that are of integral type, and is simple in structure, convenient for maintenance.
Description
(1) technical field
The utility model relates to a kind of three phase alternating current motor broken circuit protecting equipment.
(2) background technology
Three phase alternating current motor is used very extensive, as the pump that uses in the workshop, mixer, circulating fan, air draft blower fan etc. all is to drive by three phase alternating current motor, and the way of the routine of its power supply is to be connected with the molten seat of thermal relay, contactor and fusible core on the three-phase lead-out wire respectively.In case the shortcoming of this connected mode is that wherein a fusible core opens circuit, motor will phase-deficient operation, causes burning, and burns motor at every turn and will change many fusible cores, and very loaded down with trivial details, operating efficiency is low.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides that a kind of simple in structure, motor is difficult for burning, three phase alternating current motor broken circuit protecting equipment easy to maintenance.
The purpose of this utility model is achieved in that a kind of three phase alternating current motor broken circuit protecting equipment; it comprises alternating current machine; it is characterized in that: be disposed with three-phase motor protector and three-phase breaker on the three-phase lead-out wire of described alternating current machine; be respectively arranged with contactor on the three-phase lead-out wire between described three-phase motor protector and the three-phase breaker, described three-phase motor protector and three-phase breaker are integral type.
Compared with prior art, the beneficial effects of the utility model are:
The utility model three phase alternating current motor broken circuit protecting equipment by the three-phase motor protector and the three-phase breaker protector of integral type, has guaranteed that effectively motor is not burnt, and it is simple in structure, and is easy to maintenance.
(4) description of drawings
Fig. 1 is the structural representation of the utility model three phase alternating current motor broken circuit protecting equipment.
Wherein:
Alternating current machine 1, three-phase motor protector 2, contactor 3, three-phase breaker 4.
(5) embodiment
Referring to Fig. 1; a kind of three phase alternating current motor broken circuit protecting equipment that the utility model relates to; comprise alternating current machine 1; be disposed with three-phase motor protector 2 and three-phase breaker 4 on the three-phase lead-out wire of described alternating current machine 1; be respectively arranged with contactor 3 on the three-phase lead-out wire between described three-phase motor protector 2 and the three-phase breaker 4, described three-phase motor protector 2 and three-phase breaker 4 are integral type.
Claims (1)
1. three phase alternating current motor broken circuit protecting equipment; it comprises alternating current machine (1); it is characterized in that: be disposed with three-phase motor protector (2) and three-phase breaker (4) on the three-phase lead-out wire of described alternating current machine (1); be respectively arranged with contactor (3) on the three-phase lead-out wire between described three-phase motor protector (2) and the three-phase breaker (4), described three-phase motor protector (2) and three-phase breaker (4) are integral type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202515279U CN201797305U (en) | 2010-07-02 | 2010-07-02 | Open-circuit protection device of three-phase alternating current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202515279U CN201797305U (en) | 2010-07-02 | 2010-07-02 | Open-circuit protection device of three-phase alternating current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201797305U true CN201797305U (en) | 2011-04-13 |
Family
ID=43852204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202515279U Expired - Fee Related CN201797305U (en) | 2010-07-02 | 2010-07-02 | Open-circuit protection device of three-phase alternating current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201797305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037453A (en) * | 2017-12-18 | 2018-05-15 | 上海力信电气技术有限公司 | Three-phase motor stator broken circuit detecting system and method |
-
2010
- 2010-07-02 CN CN2010202515279U patent/CN201797305U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037453A (en) * | 2017-12-18 | 2018-05-15 | 上海力信电气技术有限公司 | Three-phase motor stator broken circuit detecting system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20110702 |